Elshaneo,
I would be sceptical at buying a analog camera in 2008. In a few years they are worth 'nothing'. Unless you do your own B/W darkroom work as some here do. Even then, a well worn MP has a low value. Anything above 1,000 $ sounds a lot to me. For a mint version, possibly the double.
Myself? I bought a MP - mint - for 20,000 NOK (4,000 $) two years ago. I regret it today. From now on I will be buying only digital gear - and wide angle lenses that goes with a 1,33 crop factor for my M8.